Evaluasi Kesetimbangan Unsur Hara Makro N P K Tanaman di Lahan Intensif Tanaman Cabai (Capsicum Annum L) untuk Rekomendasi Pemupukan Secara Berkelanjutan

Abstract

The objectives of the study (1) evaluate the availability of nutrients N P and K and the needs of chili plants on intensified land based on the calculation of nutrient equilibrium N, P, K on chili intensive land, (2) determine the next fertilization recommendation based on nutrient balance improvement on chili intensive land. The research was conducted on intensive land of curly red chili plants of CV partner farmers. Brillian Jaya Mandiri in Jember, Bondowoso, and Banyuwangi. Laboratory analysis aims to determine the residual residue in the soil and the absorption of nutrients N, P, K plants and fruits. Based on the results of the study, it was concluded that the availability of nutrients N in the field of jember chili was moderate; N medium Bondowoso chili field; N high Banyuwangi chili field. The P element of the jember chili field is very high; P Bondowoso chili land is high, P Banyuwangi chili field is very high. Element K of Jember chili field is medium, K of Bondowoso chili field is low, K of Banyuwangi chili field is low. The nutrient balance of N, P, K in intensive land of chili plants is based on the calculation of the nutrient balance of the three regions as follows, the Jember region is N -257.7 kg N/ha, P +74.4 kg P/ha, K -7.3 kg K/ha. The value of nutrient balance N, P, K in Bondowoso area is N-298.5 kg N/ha, P +74.1 kg P/ha, K +42.7 kg K/ha. The nutrient balance of the Banyuwangi region is N -144.5 kg N/ha, P +74.9 kg P/ha, K +21.3 kg K/ha. The positive value of the nutrient balance N, P, K indicates equilibrium. The negative value of the nutrient balance N, P, K is unbalanced. Fertilization recommendations on intensive land of chili plants based on the calculation of nutrient balances N, P, K show negative values in nutrients N and K specifically for the Jember region, so that in the next planting season it is necessary to fertilize the addition of Urea fertilizer of 144.3 kg N / ha and added KNO3 fertilizer of 1.5 kg K / ha for the Jember region, in the Bondowoso region urea fertilizer was added by 167.17 kg N/ha and the Banyuwangi region added urea fertilizer of 80.92 kg N/ha.